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netinet/tcp.h: add tcp zerocopy related changes from linux v5.11
author
Szabolcs Nagy
<nsz@port70.net>
Sun, 7 Mar 2021 21:39:24 +0000
(21:39 +0000)
committer
Rich Felker
<dalias@aerifal.cx>
Tue, 8 Mar 2022 22:19:44 +0000
(17:19 -0500)
see
linux commit
18fb76ed53865c1b5d5f0157b1b825704590beb5
net-zerocopy: Copy straggler unaligned data for TCP Rx. zerocopy.
linux commit
94ab9eb9b234ddf23af04a4bc7e8db68e67b8778
net-zerocopy: Defer vm zap unless actually needed.
include/netinet/tcp.h
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diff --git
a/include/netinet/tcp.h
b/include/netinet/tcp.h
index
b7b997f
..
30f2023
100644
(file)
--- a/
include/netinet/tcp.h
+++ b/
include/netinet/tcp.h
@@
-281,12
+281,17
@@
struct tcp_repair_window {
uint32_t rcv_wup;
};
+#define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1
+
struct tcp_zerocopy_receive {
uint64_t address;
uint32_t length;
uint32_t recv_skip_hint;
uint32_t inq;
int32_t err;
+ uint64_t copybuf_address;
+ int32_t copybuf_len;
+ uint32_t flags;
};
#endif